New Jersey license plate featuring the state nickname (GARDEN STATE) and the official state colors (Jersey blue and buff). Photo by Steve Bowbrick on Flickr (noncommercial use permitted with attribution / share alike).
New Jersey license plate; [file:field-file-main-description] Photo by [file:field-file-photographer]/Flickr ([file:field-file-license]).
Official State Colors of New Jersey
In 1780, during the Revolutionary war, General George Washington directed that the regiments of the New Jersey Continental Line have a flag of dark blue and buff. He presumably selected these colors for historic reasons - New York and New Jersey were both originally settled by the Dutch, and dark blue (Jersey blue) and buff were Holland's (the Netherlands) insignia.